Primary pulmonary plasmacytoma: a case report introduction

Abstract

Background: Extramedullary plasmacytoma is a rare plasma cell neoplasm within soft tissue and without bone marrow involvement or other systemic characteristics of multiple myeloma. Primary pulmonary plasmacytoma is a rare type of extramedullary plasmacytoma.

Case presentation: A 48-year-old male with a tumor in the right middle ear was referred to our hospital. A routine chest X-ray was arranged and showed enlargement of the left lung hilum. His bilateral breathing sounded clear. A chest CT scan revealed a well-circumscribed mass. Pathological biopsy yielded a diagnosis of isolated pulmonary plasmacytoma.

Conclusions: This is the first presentation of primary pulmonary plasmacytoma with a solitary pulmonary nodule and no lymph node involvement.

Keywords: CT scan; Extramedullary plasmacytoma; Primary pulmonary plasmacytoma.

Fig. 1

a~d Pulmonary plasmacytoma. a Chest CT lung window shows a well-circumscribed mass in the inferior lobe of the left lung, fine burrs in marginal lobulated, adjacent pleural retraction. b Chest CT mediastinal window on a plain scan shows that the nodule was homogeneous. c CT enhancement scanning shows that the nodule displayed moderate uniform reinforcement; d Microscope shows more amount of plasma cell distribution, large cells, nuclear round or ovoid, same size, often offset, chromatin spokes shaped, generally no nucleoli, nuclear fission as rare, abundant cytoplasm, many basophils (HE × 100)